There is basically no way to shift the odds in your favor unless your luck supports you every single time you gamble. No strategy can turn the odds against the house and give you an advantage while the house already has an edge. The only thing that might allow a person to have maybe a little bit of profit, in the long run, is they just withdraw as soon as they win a good enough price.
That's generally true for games with fixed mathematical odds, such as dice, or roulette. But even then sometimes is possible for a player to have an advantage, i.e. if there's a high accumulation jackpot to be won or for the games like blackjack, there's a strategy of card counting
But the real fun begins where the odds cannot be strictly determined by maths, but where there's an element of judgment needed, i.e. in sports betting. Then you could run your own odds analysis and if you spot an opportunity where (in your opinion) a betting site misjudged the odds - you could take advantage of that. But the best example of a strategy that gives you the advantage is arbitrage betting, but you can get banned for doing that.
